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Localization of a specific subset of maternal mRNAs to the vegetal cortex of Xenopus oocytes is important for the regulation of… Expand Background information. During early phases of Xenopus oogenesis, 5S rRNA and tRNAs are stored in the cytoplasm of young oocytes… Expand In previtellogenic (stage 1) Xenopus oocytes there is maximal synthesis and accumulation of 5S RNA and tRNA (1, 2). The 5S RNA… Expand Thesaurin a is one of two protein components of a 42 S ribonucleoprotein particle that is very abundant in previtellogenic… Expand We have purified and partially sequenced the EF-1 alpha protein from Xenopus laevis oocytes (EF-1 alpha O). We show that the two… Expand As components of the 42S storage particles (thesaurisomes), thesaurin a and thesaurin b are involved in the long-term storage of… Expand We have cloned cDNAs encoding two variants of the elongation factor for protein synthesis in Xenopus laevis, called EF-1 alpha… Expand We have purified in SDS X. laevis thesaurin a (M r 50 000) which is part of the 42 S storage particles. Its N‐terminal amino acid… Expand